Electrical Drives

Developer's DescriptionBy IntelitechElectrical drives are integral part of industrial and automation processes, particularly where precise control of speed of the motor is the prime.Electrical drives are integral part of industrial and automation processes, particularly where precise control of speed of the motor is the prime requirement. In addition, all modern electric trains or locomotive systems have been powered by electrical drives. Robotics is another major area where adjustable speed drives offer precise speed and position control.A drive operates and controls the speed, torque and direction of moving objects. Drives are generally employed for speed or motion control applications such as machine tools, transportation, robots, fans, etc. The drives used for controlling electric motors are known as electrical drives.The drives can be of constant or variable type. The constant speed drives are inefficient for variable speed operations; in such cases variable speed drives are used to operate the loads at any one of a wide range of speeds.The adjustable speed drives are necessary for precise and continuous control of speed, position, or torque of different loads. Along with this major function, there are many reasons to use adjustable speed drives. Some of these includeTo achieve high efficiency: Electrical drives enable to use wide range of power, from milliwatts to megawatts for various speeds and hence the overall cost of operating the system is reducedTo increase the speed of accuracy of stopping or reversing operations of motorTo control the starting currentTo provide the protectionTo establish advanced control with variation of parameters like temperature, pressure, level, etc.Topics Covered in this App are Listed BelowDC Motor or Direct Current MotorWorking Principle of Three Phase Induction MotorSynchronous Motor Working PrincipleElectric Motor Power RatingMotor Duty Class and its ClassificationInduction Motor Braking Regenerative Plugging Dynamic Braking of Induction MotorInduction Motor Drives | Starting Braking Speed Control of Induction MotorDC Motor DrivesDynamics of Electrical DrivesInterfacing of Stepper MotorControl of Electrical DrivesSynchronous Motor DrivesHysteresis MotorStepper Motor DriveBipolar Stepper MotorWhat is Braking? Types of Braking | Regenerative Plugging Dynamic BrakingTypes of Braking in a DC MotorWhat is Servo Motor?Servomechanism | Theory and Working Principle of Servo MotorServo Motor ControlDC Servo Motors | Theory of DC Servo MotorServo Motor Controller or Servo Motor DriverServo Motor Applications in Robotics Solar Tracking System etcVariable Frequency Drive or VFDElectric MotorsMagnetic CircuitsThe air-gapTorque ProductionSpecific Loadings And Specific OutputEnergy Conversion Motional EmfEquivalent CircuitGeneral Properties Of Electric MotorsPower Electronic Converters For Motor DrivesVoltage Control D.C. Output From D.C. SupplyChopper with inductive load overvoltage protectionD.C. From A.C. Controlled Rectification3-phase fully controlled converterA.C. From D.C. SP SP InversionSinusoidal PWMInverter Switching DevicesCooling Of Power Switching DevicesConventional D.C. MotorsTransient Behaviour Current SurgesShunt, Series And Compound MotorsShunt motor steady-state operating characteristicsFour-Quadrant Operation And Regenerative BrakingFull speed regenerative reversalToy MotorsD.C. Motor DrivesDiscontinuous currentSingle-converter reversing drivesControl Arrangements For D.C. DrivesChopper-Fed D.C. Motor DrivesD.C. Servo DrivesThe Real TransformerInverter-Fed Induction Motor Drives